Click on the third or sixth rank to set the en passant target square.

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Bh6 0
3 Nb7 0
4 a6 0
5 Ke6 0
6 Nf7 0
7 Ne6 0
8 h5 0
9 Bb7 0
10 Kc6 0
11 Bg7 0
12 c6 0
13 Ndc6 0
14 h6 0
15 Kd6 0
16 e5 0
17 Nbc6 0
18 Na6 0
19 c5 0
20 Rg8 0
21 e6 0
22 Ke8 0
23 Ba6 0